MongoDB Mongoid up to 8.0.12/8.1.12/9.0.11/9.1.0 authorization

Summaryinfo

A vulnerability labeled as critical has been found in MongoDB Mongoid up to 8.0.12/8.1.12/9.0.11/9.1.0. Affected is an unknown function. Such manipulation leads to authorization. This vulnerability is listed as CVE-2026-93758. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MongoDB Mongoid up to 8.0.12/8.1.12/9.0.11/9.1.0. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An insecure direct object reference in the nested attributes handling of the Mongoid object-document mapper may allow a user with basic application privileges to reference a record identifier that is not their own. Processing such a request can cause that record to be looked up without the usual ownership or scoping restrictions, then updated and linked to the requesting user's own record. This may result in unintended disclosure and unauthorized modification of data belonging to other users of the application.

The advisory is shared for download at jira.mongodb.org. This vulnerability is handled as CVE-2026-93758 since 09/18/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/18/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• Mongoid

Version

• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5
• 8.1.6
• 8.1.7
• 8.1.8
• 8.1.9
• 8.1.10
• 8.1.11
• 8.1.12
• 9.0
• 9.0.0
• 9.0.1
• 9.0.2
• 9.0.3
• 9.0.4
• 9.0.5
• 9.0.6
• 9.0.7
• 9.0.8
• 9.0.9
• 9.0.10
• 9.0.11
• 9.1.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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